I have written many times about the importance of being loyal to the Chair of Peter. The Church was founded upon St. Peter, and Our Lord personally gave the Keys to the Kingdom to Peter and his successors. We cannot be in communion with Christ unless we are in communion with the earthly head of His Church.
The Chair of Peter is of utmost importance because Our Lord considers loyalty to Peter as loyalty to Himself and God the Father, as he told Peter and the disciples in Luke 10:16:
There is no Church without Peter. Without Peter, there are no bishops because bishops are appointed by Peter. Without bishops, there are no priests because priests are ordained by the bishops. Without priests, there is no Mass, no Holy Eucharist, no forgiveness of sins, no Sacraments whatsoever.
All of this leads to the worst "no" of all - No Salvation. We all die in our sins with no hope of salvation.
